Thank you for taking the time to clarify! With this new info I think I can now give a stronger outline of my argument.
First, let me say that I do agree to a high degree with what Eliezer is saying in his tweet. Based on this, I can see why your prior for specifically “Aliens with visible craft” is so low. However, I strongly believe that his argument is focusing too much on a specific case, namely of “extraterrestrials with advanced technology coming from far far away”, which is why I also think he is overconfident in his bet. My point is similar to what you are saying about the breadth of Something Else but this time applied to your priors. Notice that I have been trying to refer to non-human intelligence and not aliens, exactly because I believe we have to be careful with our assumptions. For example, I could argue that what we are observing are malfunctioning Von Neumann probes from a long-extinct civilization, or glitches in the simulation, or aliens that are not actually super advanced, they just happened to invent warp drives early in their development and are now clumsily trying to observe other civilizations. I could even go as far as to suggest that our reality is created by our collective consciousness and UAPs are observed because some of us believe in them. I am not saying all this because I believe one such option is true, I am just trying to illustrate that in such topics, our priors should be selected carefully because there are many options that we could argue as likely using rhetorical arguments. Now my reading of what Eliezer is doing is that he is taking the most probable “incredible” explanation, namely “aliens with visible craft” and then he is giving strong counterarguments. However, the unspoken assumption is that this “most probable” explanation stems from our current ontology. If this ontology is wrong, for example, if consciousness is the fundamental substrate of our reality, then all these assumptions go out the window. What I am trying to say with all this is that, when we are trying to reason about events that would challenge our ontology if they were true and especially when there is credible evidence for such events, it is a bit of a shaky move to choose priors based on our current ontology and to hold on to them too strongly.
Another way to say this is that if you notice some evidence A,B, C and P(A|non-human intelligence (NHI)) is high, P(B|NHI) is high, P(C|NHI) is high but in the end you get that the probability of NHI given A,B and C is really low because your prior for P(NHI) is absurdly low, then maybe your choice of prior should be reconsidered. This is the crux of my disagreement. Because it seems to me that the community is doing the opposite, in that a low prior is used to subconsciously dismiss evidence which I believe to be strong and which, if considered carefully by itself, would indicate that maybe said priors should be reconsidered.
I would argue that two pieces of strong evidence exist in the current situation:
The stronger one is the (imo highly) probable existence of high quality evidence of objects displaying the behaviours given in the definition of UAP, namely “instantaneous acceleration without apparent inertia”,”transmedium travel”, “hypersonic velocity without sonic booms” etc. I am quite confident that this evidence would take the form of recordings on various types of sensors, say radar, optical / infrared video and possibly human testimony. I am fairly certain that such footage exists because:
The existence of multisensor data is confirmed for approximately 60% of unidentified aerial phenomena as mentioned in the 2021 UAP report. While this is not about objects with confirmed anomalous behaviour, I think this indicates that the US has the capabilities to track unknown objects with multiple sensors and this should extend to anomalous objects.
The wording of the definitions in the UAP disclosure act is extremely specific and care is taken to define UAPs as positively anomalous as opposed to “temporarily non-attributed”
Section 2 (4) of the same document explicitly says that credible evidence exists for the existence of UAP records (with the explicitly anomalous definition) .
Rubio and Schumer are in the Gang of Eight. The fact that they are sponsoring a document with such strong language makes me believe that they have seen clear footage, as this would make them confident enough to move forward with the UAP disclosure act.
Obama says so (To be fair, we should also take into account the previous statement about not having aliens in labs)
The Nimitz encounter (This is a video by Lemmino describing the whole incident. The summary version is that the encounter(s), if the witnesses are to be believed, have been captured in radar, infrared and directly seen by the pilots. The Nimitz encounter was described as unresolved during the 2022 UAP Hearing (see page 48))
Cases where UAPs exhibit exactly such behaviour exist in the unresolved incidents from Project Blue Book (see Lemmino link in main text)
Of the above, I think the first four are the strongest arguments for the existence of such data. Now, if such clear, multisensor data showing clearly anomalous behaviour does exist, then I think this is a strong indication that either a foreign government has made a technology breakthrough or that something even weirder is going on.
Again, the focus of the UAP disclosure act is clearly not on foreign countries. Also, if foreign governments had such technologies, I would expect they would be using it already.
The second one is the existence of the UAP Disclosure Act and the extraordinary wording encountered therein. The document is cosponsored by a bipartisan group of high ranking politicians. Additionally, Rubio alludes to there being multiple witnesses with high clearances. I admit that the whistleblower parts are shaky evidence for me too. But the existence of the amendment is imo a strong signal of something going on.
Thank you for taking the time to clarify! With this new info I think I can now give a stronger outline of my argument.
First, let me say that I do agree to a high degree with what Eliezer is saying in his tweet. Based on this, I can see why your prior for specifically “Aliens with visible craft” is so low. However, I strongly believe that his argument is focusing too much on a specific case, namely of “extraterrestrials with advanced technology coming from far far away”, which is why I also think he is overconfident in his bet. My point is similar to what you are saying about the breadth of Something Else but this time applied to your priors. Notice that I have been trying to refer to non-human intelligence and not aliens, exactly because I believe we have to be careful with our assumptions. For example, I could argue that what we are observing are malfunctioning Von Neumann probes from a long-extinct civilization, or glitches in the simulation, or aliens that are not actually super advanced, they just happened to invent warp drives early in their development and are now clumsily trying to observe other civilizations. I could even go as far as to suggest that our reality is created by our collective consciousness and UAPs are observed because some of us believe in them. I am not saying all this because I believe one such option is true, I am just trying to illustrate that in such topics, our priors should be selected carefully because there are many options that we could argue as likely using rhetorical arguments. Now my reading of what Eliezer is doing is that he is taking the most probable “incredible” explanation, namely “aliens with visible craft” and then he is giving strong counterarguments. However, the unspoken assumption is that this “most probable” explanation stems from our current ontology. If this ontology is wrong, for example, if consciousness is the fundamental substrate of our reality, then all these assumptions go out the window. What I am trying to say with all this is that, when we are trying to reason about events that would challenge our ontology if they were true and especially when there is credible evidence for such events, it is a bit of a shaky move to choose priors based on our current ontology and to hold on to them too strongly.
Another way to say this is that if you notice some evidence A,B, C and P(A|non-human intelligence (NHI)) is high, P(B|NHI) is high, P(C|NHI) is high but in the end you get that the probability of NHI given A,B and C is really low because your prior for P(NHI) is absurdly low, then maybe your choice of prior should be reconsidered. This is the crux of my disagreement. Because it seems to me that the community is doing the opposite, in that a low prior is used to subconsciously dismiss evidence which I believe to be strong and which, if considered carefully by itself, would indicate that maybe said priors should be reconsidered.
I would argue that two pieces of strong evidence exist in the current situation:
The stronger one is the (imo highly) probable existence of high quality evidence of objects displaying the behaviours given in the definition of UAP, namely “instantaneous acceleration without apparent inertia”,”transmedium travel”, “hypersonic velocity without sonic booms” etc. I am quite confident that this evidence would take the form of recordings on various types of sensors, say radar, optical / infrared video and possibly human testimony. I am fairly certain that such footage exists because:
The existence of multisensor data is confirmed for approximately 60% of unidentified aerial phenomena as mentioned in the 2021 UAP report. While this is not about objects with confirmed anomalous behaviour, I think this indicates that the US has the capabilities to track unknown objects with multiple sensors and this should extend to anomalous objects.
The wording of the definitions in the UAP disclosure act is extremely specific and care is taken to define UAPs as positively anomalous as opposed to “temporarily non-attributed”
Section 2 (4) of the same document explicitly says that credible evidence exists for the existence of UAP records (with the explicitly anomalous definition) .
Rubio and Schumer are in the Gang of Eight. The fact that they are sponsoring a document with such strong language makes me believe that they have seen clear footage, as this would make them confident enough to move forward with the UAP disclosure act.
Obama says so (To be fair, we should also take into account the previous statement about not having aliens in labs)
The Nimitz encounter (This is a video by Lemmino describing the whole incident. The summary version is that the encounter(s), if the witnesses are to be believed, have been captured in radar, infrared and directly seen by the pilots. The Nimitz encounter was described as unresolved during the 2022 UAP Hearing (see page 48))
Cases where UAPs exhibit exactly such behaviour exist in the unresolved incidents from Project Blue Book (see Lemmino link in main text)
Of the above, I think the first four are the strongest arguments for the existence of such data. Now, if such clear, multisensor data showing clearly anomalous behaviour does exist, then I think this is a strong indication that either a foreign government has made a technology breakthrough or that something even weirder is going on.
Again, the focus of the UAP disclosure act is clearly not on foreign countries. Also, if foreign governments had such technologies, I would expect they would be using it already.
The second one is the existence of the UAP Disclosure Act and the extraordinary wording encountered therein. The document is cosponsored by a bipartisan group of high ranking politicians. Additionally, Rubio alludes to there being multiple witnesses with high clearances. I admit that the whistleblower parts are shaky evidence for me too. But the existence of the amendment is imo a strong signal of something going on.